SX012/AXL012 Flange Facing and Grooving Machine
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APPENDIX B
SURFACE METROLOGY
First profile graphs of roughness texture were produced over fifty years ago by a German Engineer,
Gustav Schmalz. His graphs allowed differential magnification of vertical and horizontal axes so that a
visual assessment of surface could be made.
These profile graphs did not provide the direct indications of magnitude required by workshops. Of the
usual ways of measuring a wave from the deepest individual roughness depth of surface (R Max) was
too dependent on extremes e.g. dirt or scratches.
Conventional statistical terms like RMS present instrumental difficulties: The compromise is to use Ra
previously known as C.L.A. (Centre Line Average) which can be determined on a purely geometrical
basis and easily measured on an electrical instrument.
Ra
This is the arithmetic mean of the departure of the profile of the surface from the mean line.
Содержание SILK AXL012
Страница 41: ...SX012 AXL012 Flange Facing and Grooving Machine 40 Fig 17 Base clamping assembly ...
Страница 43: ...SX012 AXL012 Flange Facing and Grooving Machine 42 Fig 18 AXL012 single drive ring and bearing assembly ...
Страница 46: ...SX012 AXL012 Flange Facing and Grooving Machine 45 Fig 19 SX012 twin drive ring and bearing assembly ...
Страница 49: ...SX012 AXL012 Flange Facing and Grooving Machine 48 Fig 20 Saddle ...
Страница 52: ...SX012 AXL012 Flange Facing and Grooving Machine 51 Fig 21 Toolpost standard ...
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Страница 56: ...SX012 AXL012 Flange Facing and Grooving Machine 55 TOOLS FOR V GROOVE PLUNGE MACHINING ...
Страница 60: ...SX012 AXL012 Flange Facing and Grooving Machine 59 APPENDIX C V GROOVE MEASUREMENT ...
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Страница 62: ...SX012 AXL012 Flange Facing and Grooving Machine 61 APPENDIX D AIR MOTOR MANUFACTURERS INFORMATION ...
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